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Choose the human chromosome that has the...

Choose the human chromosome that has the fewest genes.

A

1st

B

X

C

Y

D

3rd

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    XII BOARDS PREVIOUS YEAR|Exercise PART – B (SECTION – IV BIOLOGY )|21 Videos

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Name the chromosomes which have most and fewest genes.

(a) In human genome, which one of the chromosomes has the most genes and which has the fewest? (b) Scientist have identified about 1cdot4 million single nucleotide polymorphs in human genome. How is this information of their existence going to help the scientists ?

Give below is highly smplified represnttion of the human sex chromosomes from a karyotype The genes a and b could be of

Given below is a highly simplified repre-sentaion of the human sex chromosome from a karyotype .The gene a and b could be of :

Select the correct set from the following statements with respect to the salient features of the human genome. i. The human genome contains 3164.7 billion nucleotides. ii. The function is unknown for over 50 % of the discovered gene. iii. Less than 20% of the genome code for Proteins. iv chromosomes -1 has the most genes ( 2968 ) and y has the fewest ( 231 ) . V. The total number of genes estimated is 30,000.

The human chromosomes with the highest and least number of genes in them are respectf vely :

Read the following statements (i) to (iv) (i) During transcription, adenine pairs with uracil. (ii) The human genome has about 98% of junk DNA. (iii) A human gene on an average contains 300 bps and there are about 30,000 genes in the human genome. (iv) Y - chromosome of the human genome has the least number of genes , i.e., 321 in the human genome. How may statements are CORRECT ?

Aassertion : In humans , most sex-lineked genes are present on the X chromosome. Reason : Human chromosome contains a large number of genes with major effects on phenotype.

XII BOARDS PREVIOUS YEAR-CUET MOCK TEST 2022-MULTIPLE CHOICE QUESTION
  1. Which of the following is not a cause for loss of biodiversity?

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  2. Lymphoid organs play a crucial role in immunity. Which among the follo...

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  3. Choose the human chromosome that has the fewest genes.

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  4. Statement I: Zoospores are sexual. reproductive structures. Statemen...

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  5. Greater value of BOD indicates to

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  6. Choose the correct sequence of plants through geological periods A. ...

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  7. Choose the correct answer from the options given below:

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  8. Plasmids in bacterial cells are

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  9. Statement I: DNA fingerprinting works on the principle of polymorphism...

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  10. The first recombinant DNA was constructed by linking an antibiotic res...

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  11. Choose the technique which is based on antigen-antibody interaction?

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  12. A Papaya plant bears flowers but never produces fruits and seeds. The ...

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  13. An inverted Pyramid of biomass is represented by

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  14. Statement I: Euchromatin is a tightly packed DNA, which can be identif...

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  15. Within a region, species richness increases with increasing explored a...

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  16. Within a region, species richness increases with increasing explored a...

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  17. Within a region, species richness increases with increasing explored a...

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  18. Within a region, species richness increases with increasing explored a...

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  19. Organism P has thick lips and tongue so that it can easily feed on the...

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  20. Organism P has thick lips and tongue so that it can easily feed on the...

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